Beyond the Void / USACO
pku 1947 Rebuilding Roads
pku 1743 Musical Theme
pku 3255 Roadblocks
pku 3177 (3352) Redundant Paths
我叫 Grover Morgan
USACO FEB07 Silver Silver Lilypad Pond 銀色蓮花池
USACO FEB07 Bronze Bronze Lilypad Pond 青銅蓮花池
USACO MAR07 Silver Monthly Expense 月度花費
USACO MAR07 Silver Balanced Lineup 平衡的陣容
USACO MAR07 Silver Cow Traffic 奶牛交通
USACO OCT07 Silver Obstacle Course 障礙訓練場
USACO NOV07 Silver Cow Hurdles 奶牛跨欄
USACO NOV07 Silver Milking Time 擠奶時間
USACO DEC07 Silver Building Roads 建造路徑
USACO JAN08 Silver Telephone Lines 架設電話線
USACO JAN08 Silver Cow Contest 奶牛的比賽
USACO JAN08 Bronze Costume Party 化裝晚會
USACO FEB08 Silver Eating Together 麻煩的聚餐
USACO FEB08 Silver Meteor Shower 流星雨
USACO FEB08 Silver Game of Lines 連線遊戲
USACO FEB08 Bronze Dining Cows 晚餐隊列安排
USACO MAR08 Gold Cow Jogging 牛跑步
USACO MAR08 Gold Pearl Pairing 珍珠分對
USACO MAR08 Silver River Crossing 奶牛渡河問題
USACO MAR08 Silver Cow Travelling 遊蕩的奶牛
USACO 5.5.2 Hidden Passwords 隱藏口令 hidden
USACO 5.5.1 Picture 矩形周長 picture
USACO 5.4.5 TeleCowmunication 奶牛的電信 telecow
USACO 5.4.4 Betsy's Tour 漫遊小鎮 betsy
USACO 5.4.1 Canada Tour 周遊加拿大 tour
USACO 5.3.3 Network of Schools 校園網 schlnet
USACO 5.3.4 Big Barn 巨大的牛棚 bigbrn
USACO 5.3.1 Milk Measuring 量取牛奶 milk4
USACO 5.2.2 Electric Fences 電網 fence3
USACO 5.2.1 Snail Trails 蝸牛的旅行 snail
USACO 5.1.3 Musical Themes 樂曲主題 theme
USACO 5.1.2 Starry Night 夜空繁星 starry
USACO 5.1.1 Fencing the Cows 圈奶牛 fc
USACO 4.4.3 Frame Up 重疊的圖像 frameup
USACO 4.3.4 Letter Game 字母遊戲 lgame
USACO 4.3.3 Buy Street Race 街道賽跑 race3
USACO 4.3.1 Buy Low, Buy Lower 逢低吸納 buylow
USACO 4.2.4 Cowcycles 奶牛自行車 cowcycle
USACO 4.2.2 The Perfect Stall 完美的牛欄 stall4
USACO 4.2.1 Drainage Ditches 草地排水 ditch
USACO 3.4.4 Raucous Rockers 破鑼搖滾樂隊
USACO 3.4.3 Electric Fence 電網
USACO 3.4.2 American Heritage 美國血統
USACO 3.3.5 A Game 遊戲
USACO 3.3.4 Home on the Range 家的範圍
USACO 3.3.2 Shopping Offers 商店購物
USACO 3.2.5 Magic Squares 魔板 msquare
USACO 3.2.3 Spinning Wheels 紡車的輪子
USACO 3.1.6 Stamps 郵票
USACO 3.1.5 Contact 聯繫
USACO 3.1.4 Shaping Regions 形成的區域
USACO 2.4.3 Cow Tours 牛的旅行
USACO 2.4.2 Overfencing 穿越柵欄
USACO 2.3.3 Zero Sum 和爲零
USACO 2.3.2 Cow Pedigrees 奶牛家譜
USACO 2.3.1 Longest Prefix 最長前綴
USACO 2.2.1 Preface Numbering 羅馬數字轉換 preface
USACO 2.2.4 Party Lamps 派對燈
USACO 2.2.3 Runaround Numbers 循環數
USACO 1.5.4 Checker Challenge （N皇后問題） 位運算解法